C++ is a statically typed, free-form, multi-paradigm, compiled, general-purpose programming language.

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291 views

Sketchy results from ray-plane intersection code

I've set up a demo with simple first-person controls using C++ and OpenGL, and it seems to work reasonably well. My goal is this: when the player looks at a plane and clicks the left mouse button, ...
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208 views

Help with Windows RawInput

I am having some trouble to receive and interpret mouse movement data from RawInput. Generally mouse input seems to work, I can query mouse buttons and receive updates of mouse movement. The problem ...
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185 views

UDK and Protocol Buffers

Actually two questions: Can I use TCP sockets in UDK to implement my own networking protocol? (I guess TCPLink is an answer) Is there any way I can user Protocol Buffers inside UDK? Or anything like ...
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287 views

Full screen shader causes performance hit

I basically want to have a shader run that can do something like toon shading, or grayscale the whole screen, or radial lighting. To do this, I create a new bitmap each time the display resizes that ...
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563 views

Algorithm for potential fields

Rather than computing potential fields in a grid and performing a lookup for them, I've decided to query the potential fields at a given point in 3D space by simply querying all the objects in a ...
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537 views

Joint constraints in PhysX

I'm trying to use PhysX for my physics engine. I'd like to use spherical joints, but I'm having trouble with the constraints. All of the examples that I've found refer to SDK v2.8. I'd like to ...
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5 views

Assimp and directX12 universal apps

I started a directX 12 universal app project on visual studios and started coding some stuff to create a physics engine. I was currently working on implmenting Assimp into the engine too load whatever ...
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22 views

crash while debug shader

I build a very basic directx 11 game that render simple cube with vertex and index buffer. I am run my game in graphic diagnostic and capture some frames. The problem is when I open the frame in ...
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49 views

Octree Frustrum Culling

times came when i had to implement some culling into my engine. I started by reading some stuff and so far so good. I managed to create an octree which can effectivly divide my geometry's vertices ...
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14 views

Platformer Tile Map Collision Help

I've been working on a small platformer as a simple project but, I'm having troubles with my collision detection. What I want is that as the player falls due to gravity, it will stop when it touches ...
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20 views

How do I hide the navigation bar in Android using the NDK? C++

I can't seem to enable immersive mode in android using the NDK. The only code that I've found relating is AConfiguration *config = NULL //AConfiguration_new(); ...
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24 views

RakNet & Allegro Client/Server Program Lagging?

I have a simple RakNet program that I wrote up with Allegro, and when I run the program and connect the Clients to the Server, they program starts to lag and uses up practically all of my CPU. I ...
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28 views

Having trouble running OpenGL on MSVC

I'm using the OpenGL Programming Guide, 8th Edition with MSVC 2013 but I can't get the triangles.cpp file to run. These are the errors popping up: http://puu.sh/jAokn/c07420cf46.png
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59 views

Creating A Selectable Object in SDL/C++

I'm trying to create a clickable object. I wrote a pseudo code to try it. When I add a new member to object it works fine, that is when I hold the mouse cursor on the rectangle determined it returns ...
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23 views

Unreal Engine 4 Line Trace Error

This is the error that I am currently facing: PlayerPawn.cpp.obj : error LNK2019: unresolved external symbol "public: bool __cdecl APlayerPawn::Trace(struct FHitResult,class AActor *,struct FVector ...
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22 views

OpenGL Quad Tessellation - What kind of VBO?

I'm just getting into tessellation and after drawing and tessellating a triangle, I want to try a quad. If I change the TCS to output 4 vertices, the TES to expect a quad and the patch size to 4, only ...
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18 views

Making a UDK server - with custom loadouts

Basically I need some help with creating a UDK server on my custom map. I have a Custom Main Menu that has four different weapons to choose from. Once you click on the weapon of choice i want to be ...
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17 views

Cannot include CCTableViewDataSource in Cocos2d-x

I found a tutorial in programering.com that show me how to create a scrolling list. But when i tried to follow this tutorial i realize that i have a problem with inheritance. I'm using Cocos2d-x ...
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65 views

Speed up the DirectX game - how else can I boost the fps with typical triangle drawing?

I am writing my own c++/DirectX engine. I've made the basic framework and here comes the time for optimizations. I don't want to focus on optimizing the resources themselves right now (meshes, ...
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35 views

Image speeds up while moving and or rotating instead of constant speed

I'm having a problem with rotating/moving an image. I've set one of my images to rotate on it's z-axis buy updating the angle, but when I run my game, the image starts slowly starts to rotate from a ...
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17 views

OpenGL, glDrawElementsInstanced behaving differently on NVIDIA GPU than AMD

I have an AMD GPU on my desktop, AMD HD 5770. I am working on a project on my desktop for over a year. In the scene, I have instanced grass and instanced trees. Everything is working fine on desktop, ...
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35 views

OpenGL, Multithreaded loading/streaming of data

I've thought about how i could implement loading of data in a second thread for two reasons, first, so i can show a nice loading-screen with progressbar and second, for openworld streaming. I came up ...
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25 views

Device.SetRenderTarget Prevents Shader From Executing

Using DirectX 9 and C++. I'm trying to finalize this code to run a HLSL shader on in-memory data. In theory it should be working. In practice the shader doesn't run. ...
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33 views

Sphere texture mapping using Directx 11

I have a spherical panoramic image which I would like onto a sphere and centre it around the camera so I can look around the image, how should I best go about this? I will be using DirectX11. ...
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21 views

How to Set Compiled Pixel Shader

When compiling a shader with D3DXCompileShaderFromFile, it works. But what if the shaders are pre-compiled into .cso files? I have this function. It fails. What's the proper way of loading the pixel ...
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21 views

DX9 StretchRect to Texture Fails

Alright, I got the code almost working to copy memory data to a texture, process it with DirectX9 into another texture and copy the result back to memory. Almost all the errors are gone and the code ...
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21 views

Directx11 Shadow Mapping Not Rendering

I'm reading luna directx11 book,i want to implement shadow mapping using it but i'v got a problem with it here is the image from my scene(at bottom right you can see shadow map,why is it in red color? ...
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22 views

boost/geometry replacement in Java/for the JVM (Destructable Box2D terrain)

I'd like to reimplement https://github.com/seemk/DestructibleBox2D in Java. The main problem is finding an adequate replacement for the boost/geometry library. Any ideas?
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37 views

Tessellation won't render

I am starting to work with tessellation and have some problems right in the beginning. I try to render a quad made of two triangles with tessellation, but nothing appears on the screen. But as soon as ...
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39 views

Model / Mesh Constructing OBB

Recently I started to implement simple bounding volumes in my Engine. So far I have implemented a Sphere and AABB, also I implemented simple ray-intersection methods for those two volumes. But I am ...
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52 views

Run Simple HLSL Pixel Shader with DirectX 9

I'm trying to run HLSL Pixel Shaders with DirectX 9 where I feed a texture in, run the HLSL code and copy the resulting texture back from memory. I think I'm getting pretty close, although a LOT of ...
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64 views

Using a Unity RenderTexture in a native plugin (4.6.1)

I am trying to create a RenderTexture in unity, but I want to update it using a plugin. I am doing this on Windows 7 Pro 64bit and I wrote the plugin using VS2010 professional. Here is the code in ...
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32 views

How can I get float values using glReadPixels? [Android NDK es3.0]

c++ code: float* data = (float*)malloc(texWidth*texHeight*sizeof(float)); // or GLfloat float* result = (float*)malloc(texWidth*texHeight*sizeof(float)); // or GLfloat for (int i = 0; i < texWidth ...
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50 views

How to achieve Anisotropic filtering x16?

I'm using directx and I've achieved x1 anisotropic filtering, however regardless of the maxanisotropy value I set, it's still only x1. If someone could help me figure it out i'd greatly appreciate it. ...
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38 views

Buffer resource as shader resource view

I am trying to build a shader that change the output color according to something that happen in my c++ code In my code I create a buffer with four element(each element containe four float - RGBA) ...
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181 views

Using Cocos2dx with Android Studio

Has anyone got Android Studio to work with Android Studio? I can get the generated project to work with proj.android, and add the NDK path to local.properties but I can't get it to rebuild after I ...
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70 views

Simple Bullet Physics Collision Detection

I've been looking into bullet physics a lot here lately to handle my collision detection. I was using XNA collision but once I started to implement momentum into my physics simulation true and false ...
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29 views

Adapting qml-box2d to work with QGraphicsScene: transform origin is incorrect

I'm taking the convenient QObject wrappers from the Box2D QML Plugin and using them with a QGraphicsScene-based game. My motivation is to save time writing them myself, as I need to expose stuff to ...
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53 views

Awesomium Input + SD2

In my project I use Awesomium GUI and SDL2. I want to create simple button. In HTML document I write <html> <body> <button onclick="app.sayHello()">Say ...
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28 views

SDL_ShowCursor not showing in Mac

I have the following code to create a software cursor in SDL: void Breakout::createAndActivateCursor() { int i, row, col; int hot_x, hot_y; Uint8 data[4*32]; Uint8 mask[4*32]; static const char ...
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59 views

OpenGL - Cubemap “Rotating” Proportional To Camera Movement

I'm doing a simple planet rendering project and am running into an issue with accessing cubemap textures correctly. The planet terrain is generated using the diamond square algorithm done 6 times and ...
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162 views

Problems with First Person Camera in C++ OpenGL

I'm building a first person camera for my application but I'm having a couple of problems relating to moving the camera. In general, I have 2 vectors, one for the camera's position and one for the ...
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50 views

How can I create a collision like the ball and peg in Peggle?

I'm making a game which requires the same type of collision as Peggle. I know of the 3 main types (elastic, inelastic and perfectly inelastic) but those result in both objects moving after the ...
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128 views

SDL2 - Windowed mode, VSYNC active, refresh rate 56hz instead of 60hz

As the topic title says. System is Windows 7 64bit. C++. I am not sure why this happens. The refresh rate in the window is 56 hz (calculated in the application from SDL_GetTicks) instead of the ...
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53 views

Directx 9 Obj Model

There's is a error with my obj load/render that I can't solve I'm a newbie in directx 9, I'm trying to do this in the best way The model is not displayed properly, do not know if this correct model ...
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80 views

server/client architecture, how to combine physics data, scene graph and database over the network?

I'm writting a C++ server and a C++ client for a rpg game. The client is using OpenSceneGraph for rendering the 3D. RakNet is used for communication between the client and server. At this time, the ...
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15 views

Box2d c++ can't see b2PolygonShape

i try to follow this tutorial and convert it to c++ http://www.emanueleferonato.com/2009/04/06/two-ways-to-make-box2d-cars/ the second part of the tutorial Now im facing very strange Behaviorno ...
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55 views

How to implement Lua thread for Sleep function

I am running into a problem in my game engine right now. I want to be able to call Sleep(number_of_seconds) from .lua file (1 only) and halt the execution of the lua file, WHILE the game is running ...
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59 views

change position/orientation of a bone using assimp

I have been using assimp to import rigged models and animations. I followed this tutorial for skeletal animation and I have got it done properly. The part that I am trying to do now is to orient a ...
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99 views

Modern OpenGL, rendering multiple obj objects not working

I am currently working on a 3D Game Engine that loads a level from an OBJ file and renders it with OpenGL. My problem is related to understanding how to render each object individually when i have ...